Writing instrument



FIG. 1 is a perspective view of a writing instrument showing my design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a perspective view of an alternative embodiment of a writing instrument showing my design;

FIG. 9 is a right side elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left side elevational view thereof;

FIG. 12 is a front elevational view thereof;

FIG. 13 is a bottom view thereof; and,

FIG. 14 is a top view thereof.

The broken lines showing interior portions are included for the purpose of illustrating environment and form no part of the claimed design. 

The ornamental design for a writing instrument, as shown and described. 